Motor-cycle.



L. F. BURKE. MOTOR CYCLE. APPLICATION FILED JULY 2. 1917.

.Patentd June 11, 1918.

2 SHEETS-SHEET l- L. F. BURKE.

I MOTOR CYCLE. APPLICATION FILED JULY 2. Hill.

Patented June 11, 1918.-

2 SHEETS SHEET 2- fnaeigiar'; I

y 95mm LM yoke whereby the rear LOT F. BURKE, OFSCHENECTADY, NEW YORK.

MOTOR-CYCLE.

Specification of Letters Patent. Patented June 11L, 191$.

Application filed July 2, 1917. Serial No. 178,140.

To (ZZZ whom it may concern:

Be it known that I, Lo'r F. BURKE, a citizen of the United States, residing at Schenectady, county of Schenectady, and State of New York, have invented certain new and useful Improvements in Motor- Cycles, of which the following is a specification.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar :parts in the. several figures therein.

This invention relates to shiftable seatmechanisin for a motor-cycle having two seats; and the principal object of the lIlVEll tion is to provide for arrangement of the seats at will, either side by side as twin seats, or one in rear of the other as tandem seats.

Other objects will appear in connection with the following description.

Figure l of the drawings is a view in side elevation of part of a motor-cycle provided with my improved shiftable seats.

Fig.2 isa top plan view of the same with the seats arranged as twin seats.

Fig. 3 is a similar View with the seats ar ranged as tandem seats.

Fig. 4 is a vertical cross section taken on the broken line l-t in Fig. 1, showing the end of the spring seatmount is supported from the frame of themotor-cycle.

Fig. 5 is a vertical cross section taken on the; broken line 5-5 in Fig. 3.

Referring to the drawings wherein the invention is. shown in preferred form, 1 is the frame of. a motor-cycle, and 2 is a seat-mount in the form of a spring-leaf or strip, connected atits front end at 3 with the frame of the machine, and having its rear end supported in a bearing, 4, formed in a yoke, 5, the legs, 6, of the yoke being secured at 7 tothe ,7 frame of the machine on opposite sides of the wheel, 8.

The legs, 6, of the yoke may contain cushioning-springs, 9, if desired.

A channeled bracket, 10, is slidably mounted upon the spring-leaf, 2; and upon this bracket are pivotally mounted a pair of seat-supporting bars, 11 and 12, with their respective pivotal connections, 13 and 14, arrangedlongitudinally of the bracket, and passing through intermediate portions of the respective bars.

A seat, 15, is mounted upon the neighborsition shown m ing ends of said bars by means of pivotal connections, 16 and 17, which are arranged longitudinally of said seat.

A similar seat, 18, is mounted upon the other ends of said bars by means of pivotal connections, 19 and 20, which are arranged longitudinally of said seat, 18.

The seat-supporting bars, 11 and 12, are offset to permit them to be swung upon the respective pivotal connections, 13 and 14, to extend either transversely of the seat-mount, 2 and bracket, 10, as shown in Fig. 2, or longitudinally thereof as shown in Fig. 3, in either of which positions both seats face forward.

The seat-mount, 2, bracket, 10, and seatsupporting bars, 11 and 12, are embraced between a pair of clamp-plates, 21 and 22, adapted to be drawn toward one another by a pair of screw-bolts, 23, arranged on oppo site sides of said seat-mount and bracket, whereby said bracket can be fixedly secured to the seat-mount, 2, and the seat-supporting bars, 11 and 12, can be secured in fixed relation to said seat-mount and bracket in either the twin-seat position shown in Fig. 2, or the tandem-seat position shown in Fi 3.

'llhe clamping-plate, 21, is preferably a handle-base-plate from which is erected a handle, 24'; and the plate, 21, is preferably provided with two sets of apertures for the bolts, 23, whereby it can be used as a clamp plate with the handle, 24, extending longitudinally of the machine between the seats whenarranged in twiirposition as in Fig. 2, or transversely in front of the rear seat when the seats are arranged in tandem-position as shown in Fig. 3.

In shifting the seats from the position shown in Fig. 2 to that shown in Fig. 3, the bolts, 23, are removed, the seat-supporting bars, 11 and 12, are swung from their transverse position to their longitudinal position with respect to the seat-mount, 2, and bracket, 10, and the bracket, 10, is slid rearward along the seat-mount, 2, until the seats in tandem-position are properly located upon the seat-mount. The seat-supporting bars and bracket are then secured in fixed position upon the seat-mount, 2, by the clamping plates, 21 and 22, and bolts, 23.

In shifting the seats from the tandem-po- Fig. 3 to the twin-position shown in Fig. 2, the bolts, 23, are removed, the seat-supporting bars swung to transverse position,

and the bracket, 10, is slid forward along the seat-mount, 2, until the twinseats are properly located, and the parts are then clamped in position as before.

If the clamping-plate, 21, is provided with the handle, 24, said clamp-plate is rotatively adjusted to cause the handle to extend longitudinally of the machine in the twin-position, and transversely of the machine in the tandem-position of the seats.

What I claim as new and desire to secure by Letters Patent isl. The combination with a vehicle; of a seat-mount extending longitudinally of the vehicle; a pair of seats; seat-supporting means shiftable to extend either longitudinally or transversely of said vehicle and said seat-mount, and supporting both seats in either of said positions with their longitudinal axes extending longitudinally of said seat-mount and vehicle.

2. In a device of the class described and in combination, a seat-mount; a bracket shiftable longitudinally upon said seatmount; a pair of seat-supporting bars piv otally mounted intermediately of their ends upon said bracket; a pair of seats; )ivotal connections between one of said seats and the respective neighboring ends of said bars, and between the other of said seats and the respective other ends of said bars; and means for clamping said bracket and said bars upon said seat-mount with the bars ex tending either transversely or longitudinally thereof.

8. The combination with a vehicle; of a support; a pair of seat-supporting bars pivotally mounted intermediately of their ends upon said support; a pair of seats; pivotal connections between one of said seats and the respective neighbOring ends of said bars, and between the other of said seats and the respective other ends of said bars; and detachable means for securing said bars in fixed position upon said support with the bars extending either transversely or longitudinally of the vehicle, said pivotal con nections being so located that said seats are supported in either position of said bars with the longitudinal axes of the seats extending longitudinally of the vehicle.

4. In a device of the class described and in combination, a support; a pair of seatsupporting bars; pivotal connections between said support and intermediate portions of the respective bars, said pivotal connections being arranged longitudinally of the support; pivotal connections arranged longitudinally of the respective seats between one of said seats and the respective ineighboring ends of said bars, and between the other of said seats and the respective other ends of said bars, said bars being ofiset to permit them to extend either transversely or longitudinally of said support; and detachable means for securing said bars fixedly in either of said positions upon said support.

5. In a device of the class described and in combination, a seat-mount; a bracket shiftable longitudinally upon said seatmount; a pair of seat-supporting bars; a

pair of seats; pivotal connections arranged longitudinally of said bracket between said bracket and the respective seat-supporting bars; pivotal connections arranged longitudinally of the respective seats between one of said seats and the respective neighboring ends of said bars, and between the other of said seats and the respective other ends of said bars, said bars being offset to permit them to extend either transversely or longitudinally of said support; and detachable means for fixedly securing said bracket in selected position upon said mount, and said bars in either of said positions upon said bracket.

6. In a device of the class described and in combination, a support; a pair of seats; seat-supporting means shiftable to extend either longitudinally or transversely of said support; detachable means for fixedly securing said seat-supporting means in either of said positions upon said support; and a handle mounted upon said support between said seats.

7 In a device of the class described and in combination, a support; a pair of seat-supporting bars pivotally mounted intermediately of their ends upon said support; a pair of seats; pivotal connections between one of said seats and the respective neighboring ends of said bars, and between the other of said seats and the respective other ends of said bars; detachable means for se curing said bars in fixed position upon said support With the bars extending either transversely or longitudinally thereof, said means including a handle base-plate; and a handle erected from said base-plate.

8. A seat attachment for motor-cycles having two seats, and means for supporting said two seats either side by side or one in front of the other, with their longitudinal axes in either position extending longitudinally of the motor-cycle.

In testimony whereof, I have hereunto set my hand this 29th day of June, 1917.

nor F. BURKE.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. (3. 

